/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Universal charset detector code. This
 * file was later added by Jehan in 2021 to add language detection.
 *
 * The Initial Developer of the Original Code is Netscape Communications
 * Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2001 the
 * Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *          Jehan <zemarmot.net> (2021)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
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 * the provisions above, a recipient may use your version of this file under
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 *
 * ***** END LICENSE BLOCK ***** */
#ifndef nsCJKDetector_h__
#define nsCJKDetector_h__

#include "nsLanguageDetector.h"

class nsCJKDetector: public nsLanguageDetector {
public:
  nsCJKDetector(): nsLanguageDetector(nullptr) { Reset(); }
  virtual      ~nsCJKDetector() {}

  const char*   GetLanguage();
  nsDetectState HandleData(const int* codepoints, PRUint32 cpLen);
  float         GetConfidence(void);
  void          Reset(void);

protected:
  /* Chinese characters (Kanji in Japanese) */
  PRUint32    mHanziChar;
  /* Korean alphabet and syllabaries */
  PRUint32    mHangulChar;
  /* Hiragana and Katakana (Japanese) */
  PRUint32    mKanaChar;

  const char* language;
  float       confidence;

private:

  void ComputeConfidence(void);
};

#endif /* nsCJKDetector_h__ */
